Try something more outrageous!

Amy teasingly caresses John's cock at a steady motion with her delicate hands while saying, "If your magical wish are true," She's gazing excitedly at his erection and suggest, "Put some effort into it and asks something outrageous," Giggle, "Ummm...something I'll never do under any circumstances."

Amy widely open her mouth to devour the erect pillar, and John visualize what it would feel like to penetrate his sister without protection,.

John sadistically grin while saying, "Something you will never do. Huh?"

John held both his sister's wrists with his left hand from escaping, and slowly unbuttoning the white-blouse with his right hand. When it came undone, he slides down to unzip the black leather-skirt.

Amy can see the twisted demeanor emitting from his eyes and reconsider, "John, I think this is a bad idea." There's a strange vibe running throughout her body and express concern, "Hmmmm...I know most of the things you said is obvious, but the situation doesn't feels right."

Seeing his sister struggle excited John even further and says, "Oh come on, sis. You're the one who told me to put some effort." He teasingly licks her earlobe and then whispers mischievously, "I know you're not on birth control. And if my ability is real, I'll use it to release some tension."

John yank on his sister's bra until it snap, and then slide his hand over to remove the undergarment, "I have been dreaming of fucking you without a condom."

Amy frantically kicks her feet to free herself when realizing his true intention and plead, "John, I know what you're thinking, but we cant..."

John ignored his sister's plead and resumes with the objective.

"I know it's normal for siblings to have intercourse, but it's not a safe day for me!" Amy informed and frantically scream at his ****, "You idiot, I might get pregnant if we do this without protection!! I'm not ready to be a motherrrrrr!"

John swiftly plug her mouth with a sock and sternly says, "Shut the fuck up bitch and let me ravage your needy cunt."

John devious grin at his sister's fearful expression and says, "Amy, you don't care about condoms. Matter of fact, you have an allergic reaction to it." A sadistic thought occurred to him and made another wish, "You're extremely addicted to fertility pills. But that doesn't bother you, because you desire to have a large family. Of course, anyone's can asks for certain amount of conceptions."

John let go of Amy's wrists and then remove the sock from her mouth. Afterward, waited patiently for the influence to take effect.

New emotion rewire Amy's subconscious and her eyes dilate with lust while saying, "Having you pin me down was kinky, little brother!" Giggles, "I don't know why you keep saying things that's already true. You know I'm allergic to condom, and consume fertility pills like candies."

"Yes...A large family will do nicely, but I'm having difficulties deciding." Amy contemplate with uncertainty due to the influence overriding common sense.

Unexpectedly, the gift also affected John's perception.

"I guess my abilities of influence doesn't work. I keep saying things that already normal." John sprouted with disappointment.

"Aww...little brother." Amy smile to ease his frustration and then suggests, "Why don't you try another wish?" Giggle, "But this time, wish for me to conceive an ample amount of offspring."

"Multiple conceptions. Huh?" John asked and Amy give an affirmative nod while replying, "Yeah but make it extra special."

"Amy, you will always end up with Octuplets." John said but decided to add another wish for his own amusement, "But someday, your ovaries will release every ova for fertilization. When that happens, the ovum will constantly create embryos until your womb is completely filled."

Amy laugh at his wish and says, "Bro, you know one of these days my ovum will divide countless embryos. Why even make a wish that's already possible?" Giggle, "What you need to do is wish for it to happen more often."

"Good ideas," John chuckle at his sister's suggestion and says, "Amy, having intercourse during the middle of your period leads to severe multiple conception."

"Funny you said that, little brother. I'm right in the middle of my period." Amy informed and softy giggled by the implication, "I'm literally screwed if you cum inside."

Amy guide his hands toward her soft breasts while encouraging, "Since we're both completely naked." Giggle, "Stop worrying about the stupid wish, and fuck me stupid."

The thoughts of having a severe pregnancies made Amy whimper, "God, what we're doing is so fuck up, little brother."

Amy's body shiver as her brother's fingers slide deep into damping tunnel, "Ughhh...That's it little brother, get my pussy nice and wet for your **** cock!" She moans as John's fingers rapidly stroking in and out, "Oh fuck, that feels good."

John lustfully explores her alluring body and says, "You like it when I slip my fingers inside your needy cunt?" Noticing the wetness of his sister's cunt made him chuckles, "Damn your pussy is drench, you'll probably let anyone fuck you."

John's words is affecting Amy's mind, and now believe that's her true personality.

Amy roll her eyes upward from the sensation and reply, "Yes, I'm an easy bitch. I'll let anybody fuck me. Even the guys I despise at school can shove their cock in my needy cunt without protection."

John continue to caress Amy's breasts and says, "Your breasts are nice, but it's a little underdeveloped. Let's try using my abilities again?"

Amy laugh by his comments and says, "Go right ahead, little brother. Let's see if it work this time."

John crisp his sister's breasts and says, "Your breasts have always been double D's and your ass is a full size larger."

Amy's breasts and ass begin to expand before their eyes. Yet, none of them find it unusual.

Amy laugh softy by his determination and exclaim, "It appears nothing has changed, little brother. Since you keep saying things that's already existed."

Amy pushes her brother onto the floor, and return his member into her drenching cunt.

"Don't worry so much about your abilities. Keep fucking me like an easy slut!" Amy say as she grind her hips to feel her brother's cock pulsating from within.

John whimpers as his sister swaying her hips back-and-forth forth to heighten the sensation.

"Damn, you're the easiest slut I know! At this rate, your needy cunt is going to milk me dry!" John said as he grab his sister's enormous butt to plunge his cock further into her cunt.

The combination of her heavy breasts bouncing against his chest overwhelmed him.

Amy laughs hysterically by his expression and asks, "Is my pussy making you feel good, little brother?"

"Damn, sis. You're one sexy slut." John replied and Amy use the weight of her body devour his cock, "Your cock feels so good inside me, little brother. I can't think straight anymore."

The thought of people knowing about her incestuous relationship with her brother pushes her over the edge of orgasm.

"Cum inside me, little brother. I don't fucking care if the conceptions is dangerous. I want babies, anyone babies. Especially your babies." Amy screamed loudly it echoes throughout the neighborhood, "Everyone, my brother going to knock me up! Come inside our home, if you want to witness the inbreeding!!!!"

The way his sister alerting the neighborhood frightened John, but the chance of getting caught aroused him.

Nearing climax, John whimpers from ecstasy, "You want my cum in your needy cunt that badly?" His eyes beaming mischievously at his sister, "How reckless can you be? Do you even realize the consequences, if people find out?"

Amy lean in and purred in his ears, "I don't care about the consequences, little brother. I want the whole world to know I'm an **** slut." Lost by her our own inner desire she demand, "Fill me up with your creamy seed."

John isn't too far away from his own orgasm and reassure, "I'm cumming you stupid slut. Your babies on it's way!"

John erupt load after load of his potent seed, deep inside his sister's fertile womb. His sperms quickly rush forwards to fertilize the defenseless ova, and begin to create as many embryos it can manage.

Amy's fate has been sealed by her brother's wish, and believes the activity is normal.

Amy gaze at the cum running down her thigh and say, "Whoa, that's a lot of cum. I'm positively certain you gotten me pregnant, little brother." She uses her fingers to scoop out a small portion of his cum from her cunt and lick her fingers, "A little salty but tasty!"

"You're getting fat," John joked at his sister's stomach swelling.

"I'm not gaining weight, idiot." Amy defends herself and says, "This is the result of having too many embryo."

"How many babies will you have?" John curiously asked and Amy says with uncertainty, "I'm not sure, but considering my stomach swell up five inches." Giggles, "Let's just assume there's too many embryos to count in our lifetime."

"Aren't you worried?" John asked and Amy reply truthfully, "I am, but it's perfectly normal for me to conceive this many. Beside, you had fun at my expense. Right?"

"Yeah, it was fun impregnating you." John admitted and then asks, "How dangerous is the pregnancies?"

"What are you aiming for?" Amy asked with a devious grin and John nervously replies, "I just wanted to witness a large pregnancies."

Amy laughs at his response and says, "You're not being honest. There's something else you wanted. Right?"

"I wanted to witness your pregnancies get larger and larger until there's issues." John confessed and Amy sighs, "You're such a wimp. If you wanted to rupture my stomach. At least asks correctly."

"I didn't want to upset you," John softly mutter.

Amy smile to ease the tension and says, "Nothing you say will upset me, little brother," She guides his hand toward her stomach, "Can you feel it? It's completely packed with embryos." Giggles, "I estimate the pregnancies will burst like a balloon within a month."

John visualize the development and says, "That's awesome. Too bad we need to wait a month."

"If you're inpatient. You can always use a wish to accelerate the development." Amy suggested and John asks conspicuously, "Are you certain about this?"

Amy contemplate for a brief moment and then says, "Honestly, it's a bad idea. But on the other hand, it wouldn't be any fun if the pregnancies was safe."

The wish rewire Amy's emotions and she finally submitted to the new desire.

"Actually bro, I think we should accelerate the pregnancies as quickly as possible." Amy said while grinning at the possibilities, "If things goes accordingly. You'll get to witness an extremely large pregnancies within a few days, and an extra bonus afterward."

Amy softly laughs at his nervousness and says, "Oh come on, little brother. It's not like the wish is real in the first place."

"You're right," John chuckle and then decided to indulge himself with the possibility, "Amy, there's a fifty percent chance the pregnancy will accelerate to maturity."

"Big bro, why you keep wishing for things that's already true?" Amy asked with a devious expression and then suggests, "What you neeed to wish for is increase the probability," Giggle, "Like...ninety percent."

"Tempting," John said but then asks with a wary expression, "Are you sure?"

"Why not?" Amy amusingly laughed with an unconcern demeanor, "I'm not worried because your wish isn't real anyways." Giggles, "But I'm literally screwed if it was true though."

"Are you worried the wish might come true?" Amy asked with a devious grin and then suggests, "Instead of ninety percent chance on a single day," Giggle, "Why not give each day a seventy percent chance?"

"That sound more reasonable," John contemplated and Amy wickedly smirk when saying, "Yeah...each day will be a mystery. Of course, seventy percent makes things more exciting."

"Amy, each day your pregnancy has a seventy percent chance of accelerating to maturity," John said but unexpectedly their mother interrupt, "Kids, I need some help with the groceries."

"Well be there soon, mom," John replied and Amy asks with confusion, "Did you make a wish, big bro?"

"I did make a wish, but your pregnancy has always been that way," John replied and Amy softly laughed when viewing the pregnancy getting larger, "You're right, the pregnancy accelerating to maturity is perfectly normal," Giggle, "Can't believe I gotten unlucky on the first day."

"How large will the pregnancy be by tomorrow?" John asked out of curiosity and Amy speculate, "The pregnancy is currently twenty inches. So...it should be ninity inches by tomorrow," Giggle, "Basically, my stomach will be overwhelm in three days unless you use a wish to keep it stable."

"Would be nice if the pregnancy manage to reach maturity," John chuckle at the prospect and Amy smirked while saying, "None of your wish worked properly."

"Let's resume testing the silly wish later, little brother," Amy said while putting on her clothing, "Right now, mom need our help."

John has a distinct feeling something wrong. But the more he struggles to remember, the harsher the migraine.